/**
* Copyright 2006 Webmedia Group Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
package org.araneaframework.uilib.widgets.lists.tests.tests.expression;
import junit.framework.TestCase;
import org.apache.log4j.Logger;
import org.araneaframework.backend.list.memorybased.Expression;
import org.araneaframework.backend.list.memorybased.ExpressionEvaluationException;
import org.araneaframework.backend.list.memorybased.expression.VariableResolver;
import org.araneaframework.backend.list.memorybased.expression.logical.AndExpression;
import org.araneaframework.backend.list.memorybased.expression.logical.NotExpression;
import org.araneaframework.backend.list.memorybased.expression.logical.OrExpression;
import org.araneaframework.uilib.widgets.lists.tests.mock.MockValueExpression;
import org.araneaframework.uilib.widgets.lists.tests.mock.MockVariableResolver;
public class LogicalExpressionTests extends TestCase {
private static final Logger log = Logger
.getLogger(LogicalExpressionTests.class);
private VariableResolver resolver;
private Expression trueExpr;
private Expression falseExpr;
private Expression notBoolExpr;
public void setUp() {
this.resolver = new MockVariableResolver();
this.trueExpr = new MockValueExpression(Boolean.TRUE);
this.falseExpr = new MockValueExpression(Boolean.FALSE);
this.notBoolExpr = new MockValueExpression(new Long(0));
}
public void tearDown() {
this.resolver = null;
this.trueExpr = null;
this.falseExpr = null;
this.notBoolExpr = null;
}
public void testAndExpression() throws ExpressionEvaluationException {
log.debug("Testing AndExpression");
try {
new AndExpression().evaluate(this.resolver);
fail("AndExpression must throw an exception");
} catch (ExpressionEvaluationException e) {
// normal
}
try {
new AndExpression().add(this.trueExpr).evaluate(this.resolver);
} catch (ExpressionEvaluationException e) {
fail("AndExpression must pass with one child");
}
try {
new AndExpression().add(this.notBoolExpr).add(this.trueExpr).add(
this.trueExpr).evaluate(this.resolver);
fail("AndExpression must throw an exception");
} catch (Exception e) {
// normal
}
assertEquals("AndExpression must return true", Boolean.TRUE,
new AndExpression().add(this.trueExpr).add(this.trueExpr)
.evaluate(this.resolver));
assertEquals("AndExpression must return false", Boolean.FALSE,
new AndExpression().add(this.falseExpr).add(this.trueExpr)
.evaluate(this.resolver));
assertEquals("AndExpression must return false", Boolean.FALSE,
new AndExpression().add(this.trueExpr).add(this.falseExpr)
.evaluate(this.resolver));
assertEquals("AndExpression must return false", Boolean.FALSE,
new AndExpression().add(this.falseExpr).add(this.falseExpr)
.evaluate(this.resolver));
}
public void testOrExpression() throws ExpressionEvaluationException {
log.debug("Testing OrExpression");
try {
new OrExpression().evaluate(this.resolver);
fail("OrExpression must throw an exception");
} catch (ExpressionEvaluationException e) {
// normal
}
try {
new OrExpression().add(this.trueExpr).evaluate(this.resolver);
} catch (ExpressionEvaluationException e) {
fail("OrExpression must pass with one child");
}
try {
new OrExpression().add(this.notBoolExpr).add(this.trueExpr).add(
this.trueExpr).evaluate(this.resolver);
fail("OrExpression must throw an exception");
} catch (Exception e) {
// normal
}
assertEquals("OrExpression must return true", Boolean.TRUE,
new OrExpression().add(this.trueExpr).add(this.trueExpr)
.evaluate(this.resolver));
assertEquals("OrExpression must return true", Boolean.TRUE,
new OrExpression().add(this.falseExpr).add(this.trueExpr)
.evaluate(this.resolver));
assertEquals("OrExpression must return true", Boolean.TRUE,
new OrExpression().add(this.trueExpr).add(this.falseExpr)
.evaluate(this.resolver));
assertEquals("OrExpression must return false", Boolean.FALSE,
new OrExpression().add(this.falseExpr).add(this.falseExpr)
.evaluate(this.resolver));
}
public void testNotExpression() throws ExpressionEvaluationException {
log.debug("Testing NotExpression");
try {
new NotExpression(null).evaluate(this.resolver);
fail("NotExpression must throw an exception");
} catch (Exception e) {
// normal
}
try {
new NotExpression(this.notBoolExpr).evaluate(this.resolver);
fail("NotExpression must throw an exception");
} catch (Exception e) {
// normal
}
assertEquals("NotExpression must return false", Boolean.FALSE,
new NotExpression(this.trueExpr).evaluate(this.resolver));
assertEquals("NotExpression must return true", Boolean.TRUE,
new NotExpression(this.falseExpr).evaluate(this.resolver));
}
}